{"id":95144,"date":"2024-10-19T22:36:17","date_gmt":"2024-10-19T14:36:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95144\/"},"modified":"2024-10-19T22:36:18","modified_gmt":"2024-10-19T14:36:18","slug":"oracle%e6%9b%b4%e6%94%b9%e8%a1%a8%e4%b8%bb%e9%8d%b5%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95144\/","title":{"rendered":"Oracle\u66f4\u6539\u8868\u4e3b\u9375\u7684\u5be6\u969b\u61c9\u7528"},"content":{"rendered":"<h1 id=\"oracle%e6%9b%b4%e6%94%b9%e8%a1%a8%e4%b8%bb%e9%8d%b5%e7%9a%84%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8-PWxDSNZoqD\">Oracle\u66f4\u6539\u8868\u4e3b\u9375\u7684\u5be6\u969b\u61c9\u7528<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u4e3b\u9375\u662f\u7528\u4f86\u552f\u4e00\u6a19\u8b58\u8868\u4e2d\u6bcf\u4e00\u884c\u6578\u64da\u7684\u91cd\u8981\u5143\u7d20\u3002Oracle\u8cc7\u6599\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u806f\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u66f4\u6539\u8868\u7684\u4e3b\u9375\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728Oracle\u4e2d\u66f4\u6539\u8868\u4e3b\u9375\u7684\u5be6\u969b\u61c9\u7528\uff0c\u5305\u62ec\u5176\u539f\u56e0\u3001\u6b65\u9a5f\u53ca\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%9b%b4%e6%94%b9%e4%b8%bb%e9%8d%b5-PWxDSNZoqD\">\u70ba\u4ec0\u9ebc\u9700\u8981\u66f4\u6539\u4e3b\u9375<\/h2>\n<p>\u66f4\u6539\u4e3b\u9375\u7684\u539f\u56e0\u591a\u7a2e\u591a\u6a23\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u696d\u52d9\u9700\u6c42\u8b8a\u66f4\uff1a<\/strong>\u96a8\u8457\u696d\u52d9\u7684\u767c\u5c55\uff0c\u53ef\u80fd\u9700\u8981\u6839\u64da\u65b0\u7684\u9700\u6c42\u4f86\u8abf\u6574\u4e3b\u9375\u3002\u4f8b\u5982\uff0c\u539f\u672c\u4f7f\u7528\u7684\u4e3b\u9375\u53ef\u80fd\u4e0d\u518d\u80fd\u5920\u552f\u4e00\u6a19\u8b58\u6578\u64da\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9078\u64c7\u4e0d\u540c\u7684\u4e3b\u9375\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u5982\u679c\u767c\u73fe\u539f\u6709\u4e3b\u9375\u5b58\u5728\u91cd\u8907\u6216\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\uff0c\u5247\u9700\u8981\u9032\u884c\u66f4\u6539\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9b%b4%e6%94%b9%e4%b8%bb%e9%8d%b5%e7%9a%84%e6%ad%a5%e9%a9%9f-PWxDSNZoqD\">\u66f4\u6539\u4e3b\u9375\u7684\u6b65\u9a5f<\/h2>\n<p>\u5728Oracle\u4e2d\u66f4\u6539\u8868\u7684\u4e3b\u9375\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%88%aa%e9%99%a4%e7%8f%be%e6%9c%89%e4%b8%bb%e9%8d%b5%e7%b4%84%e6%9d%9f-PWxDSNZoqD\">1. \u522a\u9664\u73fe\u6709\u4e3b\u9375\u7d04\u675f<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u522a\u9664\u73fe\u6709\u7684\u4e3b\u9375\u7d04\u675f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE \u8868\u540d DROP PRIMARY KEY;<\/code><\/pre>\n<h3 id=\"2-%e6%b7%bb%e5%8a%a0%e6%96%b0%e7%9a%84%e4%b8%bb%e9%8d%b5%e7%b4%84%e6%9d%9f-PWxDSNZoqD\">2. \u6dfb\u52a0\u65b0\u7684\u4e3b\u9375\u7d04\u675f<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6dfb\u52a0\u65b0\u7684\u4e3b\u9375\u7d04\u675f\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>ALTER TABLE \u8868\u540d ADD CONSTRAINT \u4e3b\u9375\u540d\u7a31 PRIMARY KEY (\u6b04\u4f4d\u540d\u7a31);<\/code><\/pre>\n<h3 id=\"3-%e7%a2%ba%e8%aa%8d%e6%9b%b4%e6%94%b9-PWxDSNZoqD\">3. \u78ba\u8a8d\u66f4\u6539<\/h3>\n<p>\u6700\u5f8c\uff0c\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u78ba\u8a8d\u4e3b\u9375\u7684\u66f4\u6539\uff1a<\/p>\n<pre><code>SELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = '\u8868\u540d' AND CONSTRAINT_TYPE = 'P';<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-PWxDSNZoqD\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u66f4\u6539\u4e3b\u9375\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u522a\u9664\u4e3b\u9375\u7d04\u675f\u4e4b\u524d\uff0c\u5fc5\u9808\u78ba\u4fdd\u6578\u64da\u4e2d\u6c92\u6709\u91cd\u8907\u7684\u503c\uff0c\u5426\u5247\u5c07\u7121\u6cd5\u6210\u529f\u6dfb\u52a0\u65b0\u7684\u4e3b\u9375\u3002<\/li>\n<li><strong>\u5916\u9375\u7d04\u675f\uff1a<\/strong>\u5982\u679c\u5176\u4ed6\u8868\u4e2d\u5b58\u5728\u5916\u9375\u7d04\u675f\uff0c\u5247\u5728\u66f4\u6539\u4e3b\u9375\u4e4b\u524d\u9700\u8981\u5148\u522a\u9664\u9019\u4e9b\u5916\u9375\u7d04\u675f\u3002<\/li>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u66f4\u6539\u4e3b\u9375\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u8868\u4e0a\uff0c\u56e0\u6b64\u5efa\u8b70\u5728\u4f4e\u5cf0\u6642\u6bb5\u9032\u884c\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%a1%88%e4%be%8b-PWxDSNZoqD\">\u5be6\u969b\u6848\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba\u201c\u5ba2\u6236\u201d\u7684\u8868\uff0c\u539f\u672c\u7684\u4e3b\u9375\u662f\u201c\u5ba2\u6236ID\u201d\u3002\u96a8\u8457\u696d\u52d9\u7684\u767c\u5c55\uff0c\u6c7a\u5b9a\u5c07\u201c\u96fb\u5b50\u90f5\u4ef6\u201d\u4f5c\u70ba\u65b0\u7684\u4e3b\u9375\u3002\u4ee5\u4e0b\u662f\u5177\u9ad4\u7684\u64cd\u4f5c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>ALTER TABLE \u5ba2\u6236 DROP PRIMARY KEY;\nALTER TABLE \u5ba2\u6236 ADD CONSTRAINT \u5ba2\u6236_PK PRIMARY KEY (\u96fb\u5b50\u90f5\u4ef6);\nSELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = '\u5ba2\u6236' AND CONSTRAINT_TYPE = 'P';<\/code><\/pre>\n<p>\u901a\u904e\u9019\u4e9b\u6b65\u9a5f\uff0c\u53ef\u4ee5\u6210\u529f\u5c07\u201c\u5ba2\u6236\u201d\u8868\u7684\u4e3b\u9375\u5f9e\u201c\u5ba2\u6236ID\u201d\u66f4\u6539\u70ba\u201c\u96fb\u5b50\u90f5\u4ef6\u201d\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PWxDSNZoqD\">\u7e3d\u7d50<\/h2>\n<p>\u5728Oracle\u8cc7\u6599\u5eab\u4e2d\uff0c\u66f4\u6539\u8868\u7684\u4e3b\u9375\u662f\u4e00\u500b\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u9069\u61c9\u4e0d\u65b7\u8b8a\u5316\u7684\u696d\u52d9\u9700\u6c42\u3002\u901a\u904e\u6b63\u78ba\u7684\u6b65\u9a5f\u548c\u6ce8\u610f\u4e8b\u9805\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u9032\u884c\u4e3b\u9375\u7684\u66f4\u6539\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u7684\u74b0\u5883\u4e2d\u9032\u884c\u9019\u4e9b\u64cd\u4f5c\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\uff0c\u7372\u53d6\u66f4\u591a\u6709\u95dc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle\u4e2d\u66f4\u6539\u8868\u4e3b\u9375\u7684\u5be6\u969b\u61c9\u7528\uff0c\u4e86\u89e3\u6b65\u9a5f\u3001\u6ce8\u610f\u4e8b\u9805\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-95144","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=95144"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95144\/revisions"}],"predecessor-version":[{"id":95145,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95144\/revisions\/95145"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}